The Opium Wars were a series of wars between Chine and Great Britain. It started when Chine started to refuse the shipments of Opium. The war was a fail for China, this means that answer A, C, and D are wrong. The only answer left is B. Please contact me if you want more information on the opium war.
Hope this Helps! :)
Richmond Virginia in April 1861
colonial governments benefited from slaves due to the fact that slaves were free labor. they could have slaves work for no pay as long and as hard as they want. meaning industries like cotton mills became wealthy. due to the cruel labor of slaves. meaning it was like an economic boom in money. also the slave trade were the government could make money from the trading of slaves. and one last big thing would be the use of slaves to serve in the armed forces for there freedom. hope it help if you put in the answer choices i could help you find the best one if needed.
Answer:
Number 3 because its on a railroad too
Explanation: